    "break" {:synsem {:cat :verb
                      :sem {:pred :break }}
             :english {:past "broke"}}
+   "bread"
+   ;; inherently singular.
+   (unify agreement-noun
+          common-noun
+          masculine-noun
+          {:synsem {:sem {:pred :pane
+                          :edible true
+                          :artifact true}
+                    :subcat {:1 {:cat :det
+                                 :number :sing
+                                 :def :def}}}})
+
 
    "bring" {:synsem {:cat :verb
                    :sem {:pred :bring

          :synsem {:cat :verb
                   :sem {:pred :run}}}

   "say" {:english {:past "said"}
          :synsem {:cat :verb
                   :sem {:pred :say}}}

   "make" {:synsem {:cat :verb
                    :sem {:pred :make}}
           :english {:past "made"}}
   "man"
   (unify agreement-noun
          common-noun
          countable-noun
          masculine-noun
          {:english {:plur "men"}
           :synsem {:sem {:human true
                          :pred :man
                          :child false}}})

   "manage" {:synsem {:cat :verb
                :sem {:pred :manage}}}
